UnixSage
Contributor
Yup that was my point, just an annoyance. It bit a pair of divers I was on a boat with (matching Cobras) which it reminded me of it.Damselfish:I don't see a problem with setting a Suunto to Nitrox/21% Perhaps annoying if you don't know this the first time and get stuck in air mode when you don't want to be, but I can understand why they would design it this way. But a Vyper or Gekko stays in Nitrox mode once you've put it there and only goes back to 21% after quite awhile or after it's cleared, not just between any 2 dives.
The high percentage is more for ppo2 warning. At %50 it will start complaining at 60'. Which I could see that sometimes you may not get there.Damselfish:I do sort of wish it would stay at whatever percentage it's set at permanently, but defaulting to 21% after it's cleared probably safest for the reason TS&M mentions. NDL is much more likely to be an issue than accumulated O2 exposure. Defaulting to 50% is definitely not safe! As far as max depth for the mix, it's nice that the computer tells you but it's something you should be well aware of and not need the computer to warn you about when you get there!
When my duo goes into default mode it take a true worse case senero it calculates N2 at %79 (Normal air NDL) and assumes O2 is at 99% so if my primary mix is in default at 99% it will start complaining at 1.4PPO which it 14'. Which is another reason I liked the way it handled it. It does not have a nitrox mode per say. It just deals with percentages, when you take it above 21 it will reset it at midnight into default. If I leave it at 21% it will stay there for ever.
I am not being critical of the Suunto line. I like them and if my LDS carried it there is a chance I might even own one. Just pointing out the few things that I discovered when I used one. Certainly not show stoppers and once I was used to it it was second nature to set it up correctly.